Article 3.6.1X : Why I couldn't restore ElnetDB in SQL?

Article 3.6.1X : Why I couldn't restore ElnetDB in SQL?

We can always restore the DB in Same version or upgraded version of SQL (but not lower version).
For example - If the backup is taken in SQL 2014, the backup file can be restored only in SQL 2014 or later but not in SQL 2008 or lower version.

If the above mentioned point is right, when restoring click "Close the existing DB" checkbox & click restore.

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